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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Look for infection - split - and rupture of the penis






2. Help to signal hormone levels which we need both in the brain right next to each other.






3. (male) pushes the testes outward toward the legs for a cool-down off of the body






4. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






5. 26 hours after estrus begins






6. Produce testosterone. located between the seminiferous tubules






7. Indicator of sperm production. the bigger the scrotal circumference the bigger volume of sperm because more seminal vesicles available to produce the sperm






8. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






9. Check feet and legs - look for masculine traits in build such as crest and muscling






10. Parturition is controlled by...






11. 114 days






12. FEED






13. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






14. Why does estrus happen before ovulation?






15. Sperm production






16. What makes the milk flow through the mammary glands?






17. Can survive ~7 days in cow. vast majority <48 hours






18. 1. visual evaluation - 2. scrotal circumference - 3. penis and prepuce observation - 4. rectal palpation - 5. libido test - 6. semen evaluation






19. 265-285 days






20. Organ of copulation - provides passageway for semen and urine - muscular organ characterized especially by its spongy - erectile tissue that fills with blood






21. Prevent the cow from getting an infection from the calve






22. What about the sperm for a bull which has been castrated but still has testicles?






23. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.






24. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






25. Scar tissue plugs up chambers of udder






26. Cleans and lubricates the urethra ahead of the sperm. (if not - the urine in the urethra has a high salt content and would cause sperm to rupture and die)






27. Depository for semen during insemination. where urine leaves the body






28. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






29. Animals which have many estrous periods during certain periods per year (ex: mare - ewe)






30. Way to know everything is alright with the breeding male






31. Pulls sperm and egg together - gets body ready for pregnany - stimulates growth cells - develops mammary glands - starts to deposit fat.






32. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






33. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






34. Duct through penis that carries sperm and urine






35. (LH) causes female's egg to break (her period)






36. Luteolysis happens because of the ____________ hormone






37. When she is pregnant in her last trimester because she needs the energy to carry around and deliver the calf. and when the calf is born because the cow needs the fat to be deposit it into her milk for the calf's energy stores.






38. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






39. ~60 days before calving






40. 10-37 (21) days






41. ~60 days before calving






42. 1-3 days






43. To remove/separate testicles from animal's body before animal reaches puberty






44. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






45. 1. brain function - 2. blood flow - 3. willing female






46. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






47. (male) pushes the testes upward toward the body for warmth or protection






48. BST given to dairy cattle makes the mammary gland more persistent - helps produce more milk. good as Long-term because it does not cause cow to bulk up - provides more milk/cow Which means less cows needed - less cows need to be given feed - lower co






49. (male) Primary sex organ - produces sperm (male gamete) and male sex hormones - 2 total






50. 283 days